ICRT (Intracavitary Radiation Therapy) is a form of brachytherapy (internal radiation therapy), where a radioactive source is placed inside a body cavity near or within the tumor.
It is most commonly used in gynecological cancers, especially:
- Cervical cancer
- Endometrial (uterine) cancer
- Vaginal cancer
What is ICRT (Intracavitary Radiation Therapy)?
The radiation source is inserted into a natural body cavity—such as the vagina or uterus—using special applicators.
The goal is to deliver high radiation directly to the tumor site , while limiting damage to surrounding healthy organs like the bladder and rectum.
How ICRT Works in Gynecological Cancers
- For cervical cancer, radiation is delivered via tandem and ovoids or ring applicators.
- For endometrial and vaginal cancers, vaginal cylinders or molds are used.
- The goal is targeted treatment, minimizing side effects.